Registered Forum User
Ducati Corse
Posts: 3,134
Join Date: Jan 2002
Location: notts
Mood: Bloo and Yellow.. and Red now ;)
I'd go for something like the Datatool system4 2-1 upgrade. This upgrades the existing immobiliser to a Cat 1 standard, ie it offers audible and visual alarms.
With most new bikes being OE fitted with some sort of immobiliser these are becoming very popular and it means that you're not messing with the already protected systems on the bike, or making additional cuts into the wiring.